Steam-radiator



FLT'UDOR & Q. N. EVA-NS. Steam-Radiator.

No. 224,055. Patented Feb. 3, 1880.

N.-PErERs, FnuTmLlTNonmPl-IER. WASHINGTON, D C.

. UNITED STATES PATENT OFFICE.

FREDERIO TUDOR AND QUIMBY N. EVANS, OF BOSTON, MASSACHUSETTS.

STEAM-RADIATOR.

SPECIFICATION forming part of Letters Patent No. 224,055, dated February 3, 1880.

- Application fil ed September 18, 1877.

To all whom it may concern:

Be it known that we, FREDERIG TUDOR and QUIMBY N. EVANS, both of Boston, in the county of Sufi'olk and State of Massachusetts,

I have invented an Improvement in Steam-Itadiators, of which the following is a specification. I

This invention relates to steam-radiators; and it consists in the combination, with a section of a radiator, of attached hollow steamlegs adapted to fit openings in a radiator-base, and fastened thereto by tap-bolts which serve to draw the section and base together; also, in the combination, with the cast-iron section, of a base having a central air-space, the lower portion of the section being placed. across the opening of the air-space to permit the air to impinge against the bottom of the section and circulate freely among the pipes; also, in the combination, with a steam-radiator, of an inclosing-case adapted to belsupplied with air from within or outside of the building, and provided with a register to regulate the quantit; of heated air to be admitted into the room.

Figure 1 represents a sectional top view of one of our radiators placed within a case, the section being on the line x 00, Fig. 2; Fig. 2, a vertical section thereof on the line y y, Fig. 1 and Fig. 3, a vertical section on line 2 z,

. Fig. 1.

The hollow cast-iron pipes at a composing each section-preferably from six to twelve pipesare cast as integral parts of the steamchambers 12 c, such chambers connecting the ends of the pipes.

Each steam-chamber c is provided with hollow steamlegs d, provided at their lower ends with screw-threads to be engaged by a tapbolt, 6, inserted through the base f, to enable the section to be held in close contact or steamtight with relation to the base.

The steam-chamber b is bored to receive the hollow steaiusupplies g, projecting from the hollow shell h of the evaporating-pan h, so as to afford free circulation of steam from the chamber through the hollow portion of the pan.

The base f is provided with an open central air-space, 43, directly across which the base of each section is placed, as shown in the drawings, so that air rising through such airspace meets the lower end of the section and circulates freely upward. Allowing the air to pass in this way in contact with the entire section heats it more efiectually than if the air merely passed upward between the sections.

Casting the sections in one piece, but with separated pipes, and connecting the sections with the base, as described, enables the production of a radiator at a much less price than if the legs or pipes were screwed independently t0 the base, as heretofore common.

The casej. surrounding the radiator, has an inlet, is, to receive air from without the building, and an inlet, 1, to receive air from the apartment in which the case is placed. A register, m, controls the openings of these two inlets, and determines which shall admit air into the casing. This casing is also provided with a register, a, with an air-space, 0, and

with air-passages p q 1".

When the register is placed to close the airpassage 1', the air admitted to the case circn-. lates freely over the radiator and out through the passagesp and q.

When register nis closedr will be open, and the admitted air passes beneath the radiator through passage 7', space 0, and passage q.

The mean temperature of the air discharged at q will depend upon the position of the register n with relation to the passages 12 and r.

1. A steam radiator section composed of hollow tubes and steam-chambers, cast together, as described, and provided with hollow steam legs, in combination with a radiatorbase and tap-bolts, substantially as described.

2. The combination, with the cast-iron section, of abase provided with a central opening, the bottom of the section being extended directly across such opening, substantially as and to operate as described.

3'. The combination, with a steam-radiator,

of an inclosing-oase provided with passages 70 M" p q, and with registers in n and air-space 0, to operate substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

FREDERIG TUDOR: QUIMBY N. EVANS.

Witnesses G. W. GREGORY,

W. J. PRATT. 

